Rounding Numbers Worksheets: Round To The Nearest 100 | MomJunction - Free Printable

Let’s go step by step to round each number to the nearest 100.

How to round to the nearest 100:

Look at the tens digit (the second digit from the right).
- If the tens digit is 5 or more, round up.
- If the tens digit is 4 or less, round down.

When rounding, we change the last two digits to zero and adjust the hundreds place if needed.

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Let’s solve each one:

#### First column:
1. 6386 → already done as example: 6400
Tens digit = 8 → round up → 6300 + 100 = 6400 ✔

2. 7758
Tens digit = 5 → round up → 7700 + 100 = 7800

3. 2549
Tens digit = 4 → round down → stays at 2500

4. 5641
Tens digit = 4 → round down → 5600

5. 8180
Tens digit = 8 → round up → 8100 + 100 = 8200

6. 4526
Tens digit = 2 → round down → 4500

7. 4527
Tens digit = 2 → round down → 4500

8. 1349
Tens digit = 4 → round down → 1300

9. 9036
Tens digit = 3 → round down → 9000

10. 4085
Tens digit = 8 → round up → 4000 + 100 = 4100

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#### Second column:
11. 7456
Tens digit = 5 → round up → 7400 + 100 = 7500

12. 5451
Tens digit = 5 → round up → 5400 + 100 = 5500

13. 3458
Tens digit = 5 → round up → 3400 + 100 = 3500

14. 3428
Tens digit = 2 → round down → 3400

15. 9142
Tens digit = 4 → round down → 9100

16. 4350
Tens digit = 5 → round up → 4300 + 100 = 4400

17. 6452
Tens digit = 5 → round up → 6400 + 100 = 6500

18. 9261
Tens digit = 6 → round up → 9200 + 100 = 9300

19. 9452
Tens digit = 5 → round up → 9400 + 100 = 9500

20. 9498
Tens digit = 9 → round up → 9400 + 100 = 9500

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#### Third column:
21. 2489
Tens digit = 8 → round up → 2400 + 100 = 2500

22. 2587
Tens digit = 8 → round up → 2500 + 100 = 2600

23. 4567
Tens digit = 6 → round up → 4500 + 100 = 4600

24. 5632
Tens digit = 3 → round down → 5600

25. 1258
Tens digit = 5 → round up → 1200 + 100 = 1300

26. 6153
Tens digit = 5 → round up → 6100 + 100 = 6200

27. 4125
Tens digit = 2 → round down → 4100

28. 2274
Tens digit = 7 → round up → 2200 + 100 = 2300

29. 1478
Tens digit = 7 → round up → 1400 + 100 = 1500

30. 3299
Tens digit = 9 → round up → 3200 + 100 = 3300

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Final Answer:
6386 = 6400
7758 = 7800
2549 = 2500
5641 = 5600
8180 = 8200
4526 = 4500
4527 = 4500
1349 = 1300
9036 = 9000
4085 = 4100

7456 = 7500
5451 = 5500
3458 = 3500
3428 = 3400
9142 = 9100
4350 = 4400
6452 = 6500
9261 = 9300
9452 = 9500
9498 = 9500

2489 = 2500
2587 = 2600
4567 = 4600
5632 = 5600
1258 = 1300
6153 = 6200
4125 = 4100
2274 = 2300
1478 = 1500
3299 = 3300